Rename clang to clang-cc.

Tests and drivers updated, still need to shuffle dirs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/comment_save.c b/test/Preprocessor/comment_save.c
index 1a3bd96..30b0434 100644
--- a/test/Preprocessor/comment_save.c
+++ b/test/Preprocessor/comment_save.c
@@ -1,5 +1,5 @@
-// RUN: clang -E -C %s | grep '^// foo$' &&
-// RUN: clang -E -C %s | grep -F '^/* bar */$'
+// RUN: clang-cc -E -C %s | grep '^// foo$' &&
+// RUN: clang-cc -E -C %s | grep -F '^/* bar */$'
 
 // foo
 /* bar */